SSH public RSA key errors
Posted: 5 October 2011 Filed under: system administration | Tags: command line, pki, ssh, system administration 4 CommentsSeen these before when trying to login via SSH with your new RSA public key?
Nov 2 12:09:17 hostname sshd[12712]: error: buffer_get_ret: trying to get more bytes 257 than in buffer 73
Nov 2 12:09:17 hostname sshd[12712]: error: buffer_get_string_ret: buffer_get failed
Nov 2 12:09:17 hostname sshd[12712]: error: buffer_get_bignum2_ret: invalid bignum
Nov 2 12:09:17 hostname sshd[12712]: error: key_from_blob: can't read rsa key
Nov 2 12:09:17 hostname sshd[12712]: error: key_read: key_from_blob AAAAB3N[...] failed
In my case these were the result of copying a public key from e-mail, which tends to mangle long text lines. I usually don’t have this problem because I use the ssh-copy-id script to copy my keys to a remote host before attempting to log in.
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Thank you! Your solution worked perfectly for me.
The issue is because of the the authorized keys file, when you are trying to configre password less Logins
Sometimes when you do copy and paste this wont work,
Solution : Try to transfer the rsa key file via ftp/sftp to the destination host and rename the file as in required user home .ssh directory to fix the issue
I think you’re right Vinoth. As noted above, I usually use ssh-copy-id.